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2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner1-5/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-24crypto: powerpc - Re-enable non-REFLECTed CRCsDaniel Axtens1-1/+30
When CRC32c was included in the kernel, Anton ripped out the #ifdefs around reflected polynomials, because CRC32c is always reflected. However, not all CRCs use reflection so we'd like to make it optional. Restore the REFLECT parts from Anton's original CRC32 implementation (https://github.com/antonblanchard/crc32-vpmsum) That implementation is available under GPLv2+, so we're OK from a licensing point of view: https://github.com/antonblanchard/crc32-vpmsum/blob/master/LICENSE.TXT As CRC32c requires REFLECT, add that #define. Cc: Anton Blanchard <anton@samba.org> Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-24crypto: powerpc - Factor out the core CRC vpmsum algorithmDaniel Axtens1-0/+726
The core nuts and bolts of the crc32c vpmsum algorithm will also work for a number of other CRC algorithms with different polynomials. Factor out the function into a new asm file. To handle multiple users of the function, a user simply provides constants, defines the name of their CRC function, and then #includes the core algorithm file. Cc: Anton Blanchard <anton@samba.org> Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>